Marine Firestop Collar,For 3 Pipe Size
1 in, Fire Rating Up to 30 min, For Pipe Size 3 in, Usage Location Fire-Rated Bulkheads and Decks, Body Design Split, Body Material Stainless Steel, Body Material Grade Type 316, Collar Body Width 2.15 in, Color Silver, Expansion Temperature 320 Degrees F, Expansion Volume 30X to 60X, Features Heavy Gauge, No Soluble or Hygroscopic Ingredients, Retrofits Around Existing Metallic and Non-Metal Pipe, Flange Diameter 6 in, Flange Material Mild Steel.